Tran, De Q H A prospective, randomized comparison between single- and double-injection, ultrasound-guided supraclavicular brachial plexus block. [electronic resource] - Regional anesthesia and pain medicine - 420-4 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 1532-8651 Standard No.: 10.1097/AAP.0b013e3181ae733a doi Subjects--Topical Terms: AdultAnesthetics, Local--administration & dosageBrachial Plexus--diagnostic imagingDrug Administration ScheduleFemaleHumansInjectionsMaleMiddle AgedMotor Activity--drug effectsNerve Block--adverse effectsPain, Postoperative--prevention & controlProspective StudiesSensory Thresholds--drug effectsTime FactorsUltrasonography, InterventionalUpper Extremity--surgeryYoung Adult